View More View Less
  • 1 School of Chemistry, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Bl. E – Cidade Universitária, Rio de Janeiro, RJ, 91949-900, Brazil
  • | 2 Materials Engineering Department, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225 – Gávea, Rio de Janeiro, RJ, 22453-900, Brazil
Restricted access

Abstract

The effect of several fiber surface treatments upon the dynamic mechanical behavior of piassava fiber-reinforced composites was evaluated. In the light of the experimental results obtained the critical volume fraction for the fibers to effectively perform as reinforcement was established. The results show that all treatments performed (mercerization, acetylation, and mercerization + acetylation) enhance the fiber/matrix adhesion, but some treatments also affect the fiber's integrity. At the elastic region the storage modulus of the composites fabricated with treated fibers was higher than that of the untreated fiber-reinforced composite. However, only the composite manufactured with 10 wt% mercerized fibers showed a statistically significant increase of the storage modulus. Above Tg the storage modulus was primarily governed by the volume fraction of fibers. Therefore, raw and treated fiber composites had essentially the same behavior.

  • 1. Mohanty, AK, Misra, M, Drzal, LT. Sustainable bio-composites from renewable resources: opportunities and challenges in the green materials world. J Polym Environ 2002 10 1/2 1926 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 2. Bledzki, AK, Gassan, J. Composites reinforced with cellulose based fibres. Prog Polym Sci 1999 24 2 221274 .

  • 3. Gañán, P, Mondragon, I. Thermal and degradation behavior of fique fiber reinforced thermoplastic matrix composites. J Therm Anal Calorim 2003 73 3 783795 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Mohanty, S, Verna, SK, Nayak, SK. Dynamic mechanical and thermal properties of MAPE treated jute/HDPE composites. Comp Sci Technol 2006 66 3/4 538547 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Matsuoka, S. Viscoelasticity and thermal analysis. J Therm Anal Calorim. 2000;59 1/2 131141 .

  • 6. Yang, H-S, Gardner, DJ, Kim, H-J. Viscoelastic and thermal analysis of lignocellulosic material filled polypropylene bio-composites. J Therm Anal Calorim 2009 98 2 553558 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. d'Almeida, JRM, Aquino, RCMP, Monteiro, SN. Tensile mechanical properties, morphological aspects and chemical characterization of piassava (Attalea funifera) fibers. Composites A 2006 37 9 14731479 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8. Aquino, RCMP, Monteiro, SN, d'Almeida, JRM. Evaluation of the critical fiber length of piassava (Attalea funifera) fibers using the pullout test. J Mater Sci Lett 2003 22 21 14951497 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. d'Almeida ALFS , d'Almeida JRM, Barreto DW, Calado V. The effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers. J Appl Polym Sci. (accepted).

    • Search Google Scholar
    • Export Citation
  • 10. Saha, A, Das, S, Bhatta, D, Mitra, B. Study of jute fibre reinforced polyester composites by dynamic mechanical analysis. J Appl Polym Sci 1999 71 9 15051513 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Nair, KCM, Thomas, S, Groeninckx, G. Thermal and dynamic mechanical analysis of polystyrene composites reinforced with short sisal fibres. Comp Sci Technol 2001 61 16 25192529 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Ray, D, Sarkar, BK, Bose, NR. Impact fatigue behaviour of vinylester resin matrix composites reinforced with alkali treated jute fibres. Composites A 2002 33 2 233241 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13. Wielage, B, Lampke, Th, Utschick, H, Soergel, F. Processing of natural reinforced polymers and the resulting dynamical-mechanical properties. Mater Process Technol 2003 139 1 140146 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Pothan, LA, Oommen, Z, Thomas, S. Dynamical mechanical analysis of banana fiber reinforced polyester composites. Comp Sci Technol 2003 63 2 283293 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 15. d'Almeida, JRM, Aquino, RCMP, Monteiro, SN. Dynamic mechanical behavior of piassava fibers (Attalea funifera) reinforced polyester composites. Int J Polym Mater 2007 56 4 397403 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Joseph, PV, Mathew, G, Joseph, K, Groeninckx, G, Thomas, S. Dynamical mechanical properties of short sisal fibre reinforced polypropylene composites. Composites A 2003 34 3 275290 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17. Aziz, SH, Ansell, MP. The effect of alkalization and fibre alignment on the mechanical and thermal properties of kenaf and hemp bast fibre composites: part 1—polyester resin matrix. Comp Sci Technol 2004 64 9 12191230 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18. Aziz, SH, Ansell, MP. The effect of alkalization and fibre alignment on the mechanical and thermal properties of kenaf and hemp bast fibre composites: part 2—cashew nut shell liquid matrix. Comp Sci Technol 2004 64 9 12311238 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19. Idicula, M, Malhotra, SK, Joseph, K, Thomas, S. Effect of layering pattern on dynamic mechanical properties of randomly oriented short banana/sisal hybrid reinforced polyester composites. J Appl Polym Sci 2005 97 5 21682174 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 20. Agarwal, BD, Broutman, LJ Analysis and performance of fiber composites 1980 Wiley New York.

  • 21. d'Almeida JRM , d'Almeida ALFS, Calado V. Evaluation of the effects of surface treatments on the tensile strength of piassava (Attalea funifera) fibers using the Weibull distribution. Polym Renew Resour. (accepted).

    • Search Google Scholar
    • Export Citation
  • 22. LH de Carvalho GC de Souza d'Almeida, JRM. Hybrid jute/cotton fabric–polyester composites: effect of fabric architecture, lamina stacking sequence and weight fraction of jute fibres on tensile strength. Plast Rubber Compos. 2007;36 4 155161 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23. Menard, PK Dynamic mechanical analysis, a practical introduction 1998 CRC Press Boca Raton.